package main

import "fmt"

func main() {

	var v1 int32 = 12
	var v2 int64
	var v3 int8

	fmt.Println(v1, v2, v3)

	//v2 = v1 + 20 //Cannot use 'v1 + 20' (type int32) as type int64
	//v3 = v1 + 20 //Cannot use 'v1 + 20' (type int32) as type int8

}
